<html>
<head>
  <meta charset="utf-8">
  <title>clock</title>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
  <div id="clock">00:00</div>
  <script type="text/javascript" src="app.js"></script>
</body>
</html>
